Perhaps you should try some spelling variations:
tdong thanh » thong thanh, trong thanh, truong thanh
hanh doanh » hang doanh, chinh doanh, doanh doanh
dong thanh » truong thanh
doanh qua » doanh quan, doanh cua, danh qua
qua dung » quang dung, su dung, qua song
ban hanh » ban hang
ho diep » hong diep, cho dieu
ban dan » ban hang, ban quan, gian dan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho diep tinh - hanh doanh qua dung ((tdong thanh) or (dong thanh)) ((ban dan) OR (ban hanh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho diep tinh - hanh doanh qua dung ((tdong thanh) OR (dong thanh)) ((ban dan) OR (ban hanh)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho diep tinh - hanh doanh qua dung ((tdong thanh) or (dong thanh)) ((ban dan) OR (ban hanh))".
• Adding a wildcard symbol may retrieve word variants: ho diep tinh - hanh doanh qua dung ((tdong thanh) or (dong thanh)) ((ban dan) OR (ban hanh))*.